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meas:sentron [2026/06/05 17:23] – vamsanmeas:sentron [2026/06/05 17:30] (current) – vamsan
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 === Differences between the Siemens SENTRON PAC2xxx, PAC3xxx, and PAC4xxx === === Differences between the Siemens SENTRON PAC2xxx, PAC3xxx, and PAC4xxx ===
-The differences in structure among the Siemens SENTRON PAC2xxx, PAC3xxx, and PAC4xxx power monitoring series are summarized below, focusing on their physical placement, measurement accuracy, communication capabilities, and compliance status.+The differences in structure among the Siemens SENTRON PAC2xxx, PAC3xxx, and PAC4xxx power monitoring series are summarised below, focusing on their physical placement, measurement accuracy, communication capabilities, and compliance status.
  
 +**SENTRON PAC Family Comparison Matrix**
  
 +^Technical Category^PAC2xxx Family (e.g., PAC2200)^PAC3xxx Family (e.g., PAC3120, PAC3220)^PAC4xxx Family (e.g., PAC4220)|
 +^Primary Device Application|Cost-sensitive sub-metering and individual breaker tracking.|Standard automation integration, feeder monitoring, and PLC bridging.|High-end power quality network analysis and historical tracking.|
 +^ Enclosure & Installation Style|Compact DIN Rail Mounting (or specialised distribution setups).|Square Panel Mount (96x96 mm Front); select models have blind DIN rail alternatives (PAC3200T).|Square Panel Mount (96x96 mm Front panel integration).|
 +^Integrated Communication Interfaces|Modbus RTU or Modbus TCP (hardwired variant decided upon purchase).|Integrated Modbus RTU or single/dual-port Modbus TCP.|Upgraded dual-port Modbus TCP supporting up to 12 parallel links.|
 +^Expansion Slot Capabilities|None (No modular physical plug-ins supported).|1 Slot available for optional PROFINET, PROFIBUS, or alternative networks.|2 Slots available for dual communication modules and extra physical I/O expansion.|
 +^Supported Network Configurations|1-phase, 2-phase, or 3-phase (up to 3-wire or 4-wire connections).|1-phase, 2-phase, or 3-phase (3-wire or 4-wire configurations).|1-phase, 2-phase, or 3-phase (3-wire or 4-wire configurations).|
 +^MID Billing Certification Status|Yes (Dedicated factory-calibrated MID variants are available).|Yes (Dedicated MID variants are available for modern models like PAC3120/3220).|No (Engineered as an analytical instrument rather than a direct tenant sub-billing meter).|
 +^Active Energy Accuracy Limits|Class 1 (Baseline industrial energy compliance).|Class 0.5S (Standard high-precision industrial automation billing).|Class 0.2 / Class 0.2S (Laboratory/revenue grade high-precision resolution).|
 +^Harmonics & Waveform Distortion Limits|Total Harmonic Distortion (THD) baseline viewing only.|Individual odd harmonics tracked up to the 31st harmonic.|Full harmonic network capture up to the 64th harmonic.|
 +^Onboard Historical Data Memory|Minimal (Only tracks real-time points and running total variables).|None (Relies entirely on external SCADA or PLC network recording).|Integrated Storage (Equipped with up to 8 GB internal memory for logging events, load profiles, and dips/swells).|